[DNSOP] Re: [TLS] Re: Re: Re: AD review draft-ietf-tls-svcb-ech

2024-10-07 Thread Eric Rescorla
Paul, I don't understand your threat model here. 1. As already noted upthread, ECH inherently leaks the name you are resolving to the resolver. This leak doesn't depend on the resolver tampering with the response, so DNSSEC verification on the client doesn't help here [0]. 2. If the client accep

[DNSOP] Re: Status of expired DNSOP working group documents

2024-10-07 Thread Paul Wouters
On Mon, 7 Oct 2024, Benno Overeinder wrote: * draft-ietf-dnsop-delegation-only - In 2021, there was a poll on the DNSOP WG mailing list to drop the draft. Rough consensus to drop the document was established on 24 August 2021. - We marked the draft as Dead in the datatracker. Still sad abou

[DNSOP] Status of expired DNSOP working group documents

2024-10-07 Thread Benno Overeinder
Dear WG, The chairs have been reviewing the expired drafts that were adopted by DNSOP at some point. Here is a brief summary of their status and next steps. * draft-ietf-dnsop-dnssec-automation - The draft is stable and WG feedback has been received and incorporated. Two directorate revie

[DNSOP] Re: [TLS] Re: Re: Re: AD review draft-ietf-tls-svcb-ech

2024-10-07 Thread Dave Lawrence
Distribution trimmed down to just dnsop, where the question is most pertinent. Paul Wouters writes: > Of course even better is using RFC 7901 Chain Query and run the few > signature validations yourself. Related, is there any notable software out there that does 7901? I started implementing it i

[DNSOP] Re: [TLS] Re: Re: Re: AD review draft-ietf-tls-svcb-ech

2024-10-07 Thread Paul Wouters
On Mon, Oct 7, 2024 at 9:26 AM Eric Rescorla wrote: > > > On Mon, Oct 7, 2024 at 6:01 AM Paul Wouters wrote: > >> >> On Sun, Oct 6, 2024 at 12:17 PM Eric Rescorla wrote: >> >>> This is explicitly prohibited rfc9460 as it would provide linkability. > See rfc9460 section 12: "Clients MUST ens

[DNSOP] Re: Multiple SVCB/HTTPS records for same TargetName: possible errata in RFC 9460?

2024-10-07 Thread Ben Schwartz
Regarding multiple AliasMode RRs, see https://www.rfc-editor.org/rfc/rfc9460.html#section-2.4.2-1: "If multiple AliasMode RRs are present, clients or recursive resolvers SHOULD pick one at random." --Ben From: Joe Abley Sent: Sunday, October 6, 2024 6:24 AM To:

[DNSOP] Re: Multiple SVCB/HTTPS records for same TargetName: possible errata in RFC 9460?

2024-10-07 Thread Ben Schwartz
Sorry, I don't understand why this configuration would create a problem. Each SVCB record is a valid configuration. Clients should try one, and if it fails, they should try the other. [1] A server should disambiguate which ECHConfig is in use by the config_id, or otherwise use trial decryption

[DNSOP] Re: WGLC for draft-ietf-dnsop-compact-denial-of-existence

2024-10-07 Thread Shumon Huque
On Fri, Oct 4, 2024 at 10:21 AM Vladimír Čunát wrote: > On 04/10/2024 05.20, John Levine wrote: > > Editorially, I would move the stuff about approaches not taken to an appendix > to > avoid confusing people. That includes the second and last paragraphs of > section 2. > > Yes, please. > Yes,

[DNSOP] Re: WGLC for draft-ietf-dnsop-compact-denial-of-existence

2024-10-07 Thread Shumon Huque
On Thu, Oct 3, 2024 at 8:00 PM Dave Lawrence wrote: > I have read the most recent version of the document and am strongly in > favor of its publication as a proposed standard. I want my NXDOMAINs > back. > Thanks! You're not the only one :) > I have little substantive feedback on the text, mo

[DNSOP] Re: [TLS] Re: Re: Re: AD review draft-ietf-tls-svcb-ech

2024-10-07 Thread Eric Rescorla
On Mon, Oct 7, 2024 at 6:01 AM Paul Wouters wrote: > > On Sun, Oct 6, 2024 at 12:17 PM Eric Rescorla wrote: > >> This is explicitly prohibited rfc9460 as it would provide linkability. See rfc9460 section 12: "Clients MUST ensure that their DNS cache is partitioned for each local networ

[DNSOP] Re: [TLS] Re: Re: Re: AD review draft-ietf-tls-svcb-ech

2024-10-07 Thread Paul Wouters
On Sun, Oct 6, 2024 at 12:17 PM Eric Rescorla wrote: > This is explicitly prohibited rfc9460 as it would provide linkability. >>> See rfc9460 section 12: "Clients MUST ensure that their DNS cache is >>> partitioned for each local network, or flushed on network changes, to >>> prevent a local adve